As spa designers know so well, white is queen when it comes to creating an uplifting and soothing ambience. Use architectural details and a variety of textures to keep alabaster décor from becoming too flat or downright boring. A striking piece of furniture, a shaggy rug, or a light fixture with a wow factor can attract as much attention as any jolt of color. The added advantage with such a neutral backdrop? You can introduce just about any tint your mood dictates with a fresh bouquet of flowers or a cozy throw.